基于OpenSEES和ABAQUS有限元模型的剪力墙拟静力试验研究

Research on the finite element model of the quasi-static test of shear wall based on OpenSEES and ABAQUS

为保证模拟精度并提高钢筋混凝土剪力墙有限元模型计算效率,分别采用ABAQUS软件和OpenSEES软件建立精细化和简化有限元模型,对1个足尺钢筋混凝土剪力墙试件拟静力试验进行数值模拟分析,从试验现象、破坏模式、裂缝发展趋势、应变、滞回曲线等方面进行对比验证。结果表明:在保证模拟精确度的前提下,ABAQUS精细化模型在裂缝发展、墙体损伤等方面与试验现象吻合较好,但模型计算时间较长;OpenSEES简化模型在滞回曲线方面模拟结果与试验结果吻合更好,误差在5%以内,并显著提高了计算效率。

In order to ensure the simulation accuracy and improve the calculation efficiency of the finite element model of reinforced concrete shear wall,refined and simplified finite element models were established by using ABAQUS and OpenSEES to conduct the numerical simulation of the quasi-static test on a full-size reinforced concrete shear wall and comparatively analyze the phenomenon,failure mode,crack development process,strain and hysteretic performance.The results showed that on the premise of ensuring the simulation accuracy,the ABAQUS refined model is in good agreement with the test phenomenon in terms of crack development process and wall damage,but the calculation time of the model is longer;the OpenSEES simplified model is in good agreement with the test results in terms of hysteresis performance,with the error less than 5%,and the calculation efficiency is significantly improved.